Histology of the distal lobe of the pituitary of Xenopus laevis daudin

The pituitary of the African lungfish Protopterus sp

“…The two types of acidophils appear comparable to the two seen in amphibians on the basis of their distribution and of their carminophilic or orangeophilic reactions (van Oordt, 1963) as well as the slight affinity of one for PAS (Pasteels and Herlant, 1960-61;Kerr, 1965)) although there does appear to be sufficient difference in the staining reaction of these cells in different species of amphibians (cf. Copeland, 1943;Pasteels, 1960) to warrant further investigation.…”

“…1 and 3). Their granules are coarse and somewhat irregular in shape, and react with Alcian Blue and with PAS; they also react with bot.h the aldehyde-fuchsin (AF) of Gabe after acidified permanganate oxidation, and with that of Gomori after Lug01 oxidation (see Kerr, 1965) (Fig. 3).…”

“…The Type-l series of basophils can be equated with the TSH cells of amphibians (van Oordt, 1963(van Oordt, , 1966Kerr, 1965); this is based partly on their early appearance during development and partly on their comparable staining reactions, although in the adult fish these cells are considerably more numerous than they are in amphibians. The Type-2 basophils may represent the FSH series because of their predominance in the adult as compared with their absence in young stages; also, if the rather stronger arguments for the identification of Types 1 and 3 can be accepted, they can be identified by elimination.…”

“…Finally, the systematic position of the dipnoans, as the closest living relatives to the crossopterygian ancestors of the land animals, gives the pituitary of Protopterus a considerable interest in the reconstruction of a general evolutionary sequence. Kerr, 1965) and Herlant's tetrachrome (Herlant, 1960). Additionally secitions were stained with aldehyde-fuchsin (AF) according to Halmi (1952) with Lugol's solution as .the oxidizing agent, or according to Gabe's (1953) van Oordt, 1965).…”

Electron Microscopic Studies on the Anterior Lobe Cells of the Frog Hypophysis, with Special Regard to the Identification of the ACTH-Cell

“…; VAN OORDT, 1961;ORTMAN, 1961;GUARDABASSI and BLANCHI, 1962;KERR, 1965). KNUTSON (1966) The fine structural classification of the glandular cells in the amphibian pars distalis has been reported by many authors (DOERR-SCHOTT, 1962, 1966CARDELL, Jr, 1964a, b;ITURRIZA, 1964;SREBRO, 1965;DENT and GUPTA, 1967;BUNT, 1969;MIRA-MOSER, 1970 (Fig.…”